JPH0533181B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a transfer guide for an insulated trolley used for supplying power to a movable trolley or the like.

(Prior art and its problems) The transfer guide described above is provided at both ends of insulated trolleys facing each other at a constant interval, and a current collector brush that moves in contact with the contact wire is transferred from one insulated trolley to the other. This device allows for smooth transfer to an insulated trolley.

Examples of locations where the insulated trolley must be cut and a transfer guide placed are as shown in Figure 11, when installing the rails and insulated trolley of a moving trolley for painting or work on a bridge girder. There is a section S of the bridge girder.

In other words, in large bridges, horizontal loads due to thermal expansion and contraction of bridge materials and vertical vibration loads from passing cars are applied, but in order to absorb the stress caused by these loads, the connecting part A between the pedestal 40 and the pier 41 rotates. In addition to being freely configured, there is a dividing section S between the piers of the bridge girder.
is formed. As shown in FIG. 12, the divided portion S pivots and connects both the bridge girder members T by pins 42 so as to be relatively movable and rotatable in the length direction.
The insulating trolley fixed to the bridge girder member T is once divided at the dividing portion S.

However, as a transfer guide provided at the end of the insulated trolley of the divided portion S, conventionally only the brush holder guide 30 shown in FIG. The impact is large and can cause damage or deformation of the insulated trolley, or accelerate the wear of the contact wire.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides an insulated trolley by storing the contact wire on which the current collector brush of a movable trolley or the like slides in an insulating cover having skirt portions on both sides. The insulating trolley is arranged to face the mating insulating trolley at a constant interval, and a brush holder guide that protrudes toward the mating insulating trolley is fixed to the tip of the insulating trolley via a reinforcing metal fitting. Guide side walls are provided on both sides of the guide, and the guide is formed so that its distal end is upward and wide, and a brush holder is provided at the base end of the guide that extends along each outer side of both skirt parts. The slider is connected, and the shape of the slider is formed into a bow shape that gently projects downward, and the skirt portion at the tip of the insulating cover is formed to become wider toward the tip.

(Example) In FIG. 8, firstly, the movable trolley 5 and its current collector 5a will be described. The movable trolley 5 is equipped with a pair of front and rear current collectors 5a, and the brush holder 6 of the current collector 5a is mounted on a bracket 7. is supported via a horizontal pin 8 so as to be rotatable at a predetermined angle. The bracket 7 is rotatably supported at the tip of an arm 9 via a vertical pin 4, and the base end of the arm 9 is rotatably supported in the vertical direction by a vertical shaft 10 via a horizontal pin 11, and is supported by a spring. It is urged upward (towards the insulated trolley) by the mechanism 12. The vertical shaft 10 is rotatably supported by the truck 5 via a bracket 13. That is, the brush holder 6 is supported by the trolley 5 so as to be rotatable in the vertical and horizontal directions, and is urged upward.

The insulating trolley 1 is laid along the moving direction of the movable trolley 5 and is fixed to, for example, a bridge girder member T.
The bridge girder member T is divided at a dividing portion S. The ends of each of the divided insulating trolleys 1 face each other at a constant interval (for example, 30 cm), and a transfer guide is formed at each end of the insulating trolley.

As shown in FIG. 6, the insulating trolley 1 is comprised of an insulating cover 2 made of synthetic resin (for example, made of hard vinyl chloride) and having a U-shaped cross-section that opens downward, and a contact wire 3 made of copper. The insulating cover 2 securely holds the inflatable head 3a of the contact wire 3, and has a pair of left and right skirt portions 2a extending downward, and an upward groove 17 is formed on the outer side of the lower end of the skirt portion 2a. ing.

The brush holder 6 of the movable cart is formed in an upward U-shape, and a copper current collector brush 19 is provided in the center of the left and right width of the brush holder 6 in parallel with both sides of the brush holder 6. The brush 19 comes into contact with the lower surface of the contact wire 3.

In FIG. 1 showing a side view of the transfer guide, a reinforcing metal fitting 15 having a U-shaped cross section is arranged above the insulating trolley 1 in parallel with the insulating trolley 1, and the reinforcing metal fitting 15 has, for example, two hangers 1 attached thereto.
6 and 16' are fixedly attached, and the upper part of the insulating cover 2 is held in place by the hangers 16 and 16' so as not to fall off. The reinforcing metal fitting 15 and the central hanger 16 have their male threaded portions 16a protruding upward and are fixed to the reinforcing metal fitting 15 with nuts 18. is fixed. Two insulators 20, 20 are also fixed to the end of the reinforcing metal fitting 15 on the arrow F' direction side (divided portion S side), and the reinforcing metal fitting 15 is connected to the reinforcing metal fitting 15 through three insulators 20, 20, 20 as a whole. is fixed to the bridge girder section T. A clamp 21 for regulating the movement of the insulating trolley is arranged adjacent to each hanger 16, the clamp 21 is fixed to the insulating cover 2, and the central clamp 21 is located at the end of the central hanger 16 in the direction of arrow F'. touches the edge,
The clamp 21 on the arrow F side is in contact with the edge of the hanger 16 on the arrow F side.

An insulating piece 22 is placed in the middle of the contact wire 3 at a certain distance from the tip edge 2a of the insulating cover. is held between. Three notches 22a are formed at intervals on the lower surface of the insulating piece 22. Trolley wire tip portion 3' on the tip side of the insulating piece 22
is kept in a non-charged state by being electrically isolated by an insulating piece 22. The contact wire tip portion 3' extends to the middle of the insulating cover 2, and its tip edge 3a is a certain distance L from the insulating cover tip edge 2a.
1 is separated. L2 indicates the length (section) of the contact wire tip portion 3' in a non-charged state, and L3 indicates the length (section) of the insulating piece.

A sheet metal widening metal fitting 25 is fixed to the part of the reinforcing metal fitting 15 on the divided portion S side together with the insulator 20, and a downward end wall 25a is formed on the edge of the widening metal 25 on the side in the direction of arrow F'. . The end wall 25a comes into contact with the leading edge 2a of the insulating cover, and serves as a stopper for positioning the insulating cover 2 in the length direction of the insulating trolley. Lower end wall 2 of the end wall 25a
5b extends in the direction of arrow F and expands the upper wall 2c of the tip portion of the insulating cover 2 upward.

There is an arrow mark on the edge of the divided portion S side of the reinforcing metal fitting 15.
An inverted L-shaped sheet metal support 27 protruding toward the F′ side is welded to the support 27, and the brush boulder 6
A sheet metal guide 30 for guiding is welded to the support 27, and an arcuate brush holder slider 31 is formed integrally with the support 27 at the end of the support 27 on the arrow F side. The guide 30 is inclined upward as it goes toward the arrow F' side, and the guide 30
The leading edge is further bent upward in an arc shape.

The slider 31 is formed into an arcuate shape so as to protrude downward, and the end of the slider 31 on the side of arrow F' is smoothly connected to the end of the guide 30 on the side of arrow F within the same plane. The lower end apex 31a of the slider 31 is located near the tip edge 3a of the trolley wire, and is at a position slightly lower than the lower end of the troy wire 3.

In FIG. 2 showing a bottom view of the transfer guide, the guide 30 is integrally provided with side walls 30a at both left and right ends, and its center line coincides with the axis of the contact wire 3, and as it goes toward the arrow F' side, It is designed to be wide. The inner width W of the portion of the guide 30 on the arrow F side is formed to be slightly wider than the width of the brush holder 6, and is adapted to guide the center line of the brush holder 6 so as to coincide with the center line of the contact wire 3. The end portion 30b of the guide side wall 30a on the arrow F' side further widens in an arc shape, and the end portions 30c of both guide side walls 30a on the arrow F side are also formed so as to widen in a circular arc shape.

The slider 31 is divided into both sides of the insulating cover 2 and extends along the insulating cover 2 and parallel to the insulating cover 2 toward the arrow F side.

An extended tip portion (section L1 portion) of the insulating cover 2 that extends from the contact wire tip edge 3a to the divided portion S side
As shown in FIG. 3, it is divided into three parts: the upper wall 2c and the left and right skirt parts 2a, and the upper wall 2c is expanded upward by the horizontal lower end wall 25b of the widening bracket 25 as described above. There is. Further, the width widening fitting 25 is formed to have a downward U-shaped cross section, and the lower ends of the left and right side walls 25d thereof engage with the lower end grooves 17 of both the skirt parts 2a, thereby widening the width of both the skirt parts 2a left and right.

The distal end portion of the insulating cover 2 is widened by the widening fitting 25 as described above, so that both skirt portions 2a are held in a shape that widens toward the distal end side, as shown in FIG.

FIG. 4 is a view taken in the direction of the arrows in FIG. 3, and clearly shows the engagement between the insulating cover upper wall 2c and the widening fitting 25.

(Function) The movable cart 5 in FIG. 8 moves in the direction of arrow F,
When the brush holder 6 in the direction of arrow F is transferred to the insulating trolley 1 in the direction of arrow F, the brush holder 6, which is urged upward by the spring mechanism 12, first contacts the guide 30, and the guide 30 moves the mechanism. 1
The brush 19 is pushed down against the elastic force of the contact wire 3, and is guided toward the center of the left and right width by the guide side wall 30a in FIG.

Brush holder 6 moves from guide 30 to slider 3
1, the holder 6 comes into contact with the slider 31 and is further pushed down in the section L1 of FIG. Enter between part 2a.

When reaching the vicinity of the lower end apex 31a of the slider 31 shown in FIG. 1, the brush 19 is lowered to a height opposite to the lower surface of the contact wire tip portion 3' with a slight distance therebetween, as shown in FIG. After passing the top 31a in FIG. 1, the slider 31 moves back upward, causing the brush 19 to come into contact with the contact wire tip 3' as shown in FIG. away and return to normal steering. That is, just after passing the slider top 31a, the brush 19 and contact wire 3 (tip portion 3') come into contact between the slider 31 and the brush holder 6.
Move to contact with. In this case, since the brush 19 first comes into contact with the uncharged contact wire tip 3', no spark is generated.

The brush 19 smoothly transfers from the uncharged contact wire tip portion 3' to the insulating piece 22, and then transfers to the charged contact wire 3.

Note that while the brush 19 on the side of arrow F in FIG. 8 passes through the divided portion S, current is collected only by the brush 19 on the side of arrow F'.

On the other hand, when the movable trolley 5 moves in the direction of arrow F' in FIG. As the brush holder 6 begins to contact the slider 31, the brush 19 separates from the contact wire tip portion 3', and the brush holder 6 further contacts the guide 30 and advances to the separation portion S.

(Another Embodiment) (1) As shown in FIGS. 9 and 10, the transfer guide shown in FIG. 1 can be applied as is to insulated trolleys with contact wires 3 of different heights. For example, if the height of the contact wire 3 is a little lower than that in FIG. 6 as shown in FIG. 9, 31b in FIG.
There is an automatic transition from contact with the brush holder 6 to contact with the brush 19 in the vicinity (a little closer to the arrow F' direction than 31a), and when the height of the contact wire 3 is even lower as shown in Fig. 10, The contact automatically shifts from contact with the brush holder 6 to contact with the brush 19 near 31c in FIG. 1 (further in the direction of arrow F' than 31b).

(2) In the device shown in Figure 1, the reinforcing metal fittings 15 are insulators 20
Although it is fixed to the bridge girder member T via the insulator 20, it may be fixed without using the insulator 20.

(3) The present invention can also be applied to an insulated trolley installed horizontally. In that case, for example, FIG. 1 corresponds to a plan view (top view).

(Effects of the Invention) As explained above, according to the present invention: (1) Following the brush holder guide 30 which has a wide shape with its tip facing upward, an arcuate brush holder slider 31 which projects downward is provided. Since the distal end portion of the insulating cover 2 of the insulating trolley 1 is expanded by the widening metal fitting, the brush holder 6 is received and guided by the guide 30 by the gentle guiding action of the arcuate slider 31 on the brush holder 6. The transition from action to contact of the brush 19 with the contact wire 3 can be reliably and smoothly.

Therefore, the shock when transferring can be greatly reduced,
Wear and damage to the contact wire 3 or deformation of the insulating cover 2 due to impact can be reduced, and the life of the transfer guide can be extended.

(2) Since the brush holder slider 31 is formed in an arcuate shape, for example, even with various insulated trolleys with different heights of the contact wire 3, there is no point where the contact between the brush holder 6 and the brush 19 changes. ,
Point 31 in Fig. 1 from slider top 31a
It will gradually change to b and 31c. Therefore, a transfer guide of the same standard can be used for various insulated trolleys with different contact wire heights, and the range of use is wide.

[Brief explanation of drawings]

Fig. 1 is a side view of a transfer guide to which the present invention is applied, Fig. 2 is a view in the direction of the arrows (bottom view) of Fig. 1, and Figs. 3, 6, and 7 are - and - of Fig. 1, respectively. , - Enlarged cross-sectional view, Figure 4 is the third
Figure 5 is a cross-sectional view of Figure 3,
FIG. 8 is a side view of the current collector of the moving trolley, FIGS. 9 and 10 are longitudinal cross-sectional views showing modified examples of the insulated trolley, and FIG. 11 is a structure for installing the insulated trolley according to the present invention, such as a bridge. A schematic side view, and FIG. 12 is an enlarged top view of the S portion in FIG. 11. 1...
Insulating trolley, 2... Insulating cover, 3... Contact wire, 25... Widening fitting, 30... Brush holder guide, 31... Slider.

Claims (1)

[Claims] 1. A contact wire on which a current collecting brush of a movable trolley etc. slides is housed in an insulating cover having skirt parts on both sides to form an insulated trolley, and the insulated trolley is opposed to a mating insulated trolley at a fixed interval. A brush holder guide that protrudes toward the mating insulating trolley is fixed to the tip of the insulating trolley via reinforcing metal fittings, and guide side walls are provided on both sides of the brush holder guide, so that the tip of the brush holder guide is placed upward. A brush holder slider extending along each outside of both skirt parts is connected to the base end of the brush holder guide, and the slider is shaped so that it gently protrudes downward. A transfer guide for an insulating trolley, characterized in that it is formed into a bow shape, and a skirt portion at the tip of the insulating cover is formed to become wider toward the tip.